- Influenza (seasonal) - World Health Organization (WHO)
WHO fact sheet on influenza: includes key facts, definition, symptoms, transmission, seasonal epidemics, effects, prevention, WHO response
- Influenza (seasonal) - World Health Organization (WHO)
Seasonal influenza is an acute respiratory infection caused by influenza viruses which circulate in all parts of the world It is characterized by a sudden onset of fever, cough (usually dry), headache, muscle and joint pain, severe malaise (feeling unwell), sore throat and a runny nose The cough can be severe and can last two or more weeks
- Influenza - World Health Organization (WHO)
Influenza is an acute viral infection that primarily attacks the upper respiratory tract, including the nose, throat, bronchi and, less frequently, the lungs The disease occurs worldwide and spreads very quickly in populations, especially in crowded circumstances
- Gripe (estacional) - World Health Organization (WHO)
La gripe es una infección vírica aguda que se transmite fácilmente de una persona a otra Los virus de la gripe circulan por todo el mundo y pueden afectar a cualquier persona de cualquier edad
- Influenza - India - World Health Organization (WHO)
Influenza (flu) is a contagious respiratory illness caused by influenza viruses It can cause mild to severe illness The virus is transmitted easily from person to person via droplets Influenza tends to spread rapidly in seasonal epidemics Infection usually lasts for about a week, and is characterized by sudden onset of high fever, aching muscles, headache and severe malaise, non-productive
- The burden of Influenza - World Health Organization (WHO)
Influenza, or the flu, is both a seasonal and a pandemic virus Every year, mainly during the winter season, seasonal influenza infects as many as 1 billion people This makes it one of the most common infectious respiratory viruses, after the common cold Thankfully, the WHO Global Influenza Surveillance and Response System, or GISRS, monitors what viruses are circulating and twice a year
- Recommendations announced for influenza vaccine composition for the . . .
The World Health Organization (WHO) today announced its recommendations for the viral composition of influenza vaccines for use in the 2026 influenza season in the southern hemisphere The announcement was made at an Information Meeting after a 4-day Consultation on the Composition of Influenza Virus Vaccines
- Influenza - World Health Organization (WHO)
Influenza is an ever-evolving disease, so the work on prevention, preparedness and response has to adapt continuously to keep up with these changes WHO and partners are developing a renewed Global Influenza Strategy to be launched this year
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